Automatic carton-mouth-coating machine



Nov. 20 1923.

' F. COATES AUTOMAQIIC CARTON MQUTH COATING'MACHINE FiledAug. 11. 1921 Nov.

-' .Um'rao sTATEs PATENT oF-F cE.

FBIDEBICK COATES; OF CINCINNATI, OHIO, ASSIGNOR TOEEDEBAL PRODUCTS COM- ,PAN Y, OI CINCINNATI, OHIO, A CORPORATION OF OHIO.

nuron'nc cAnron-xourn-coarme mom Application fled him 11, 1921.. mm Io. 491,453;

Toallwkomtmayo omm:

Be 'it known that Fnnnnmox Con'rns, a,

' citizen of the United Statei I residing at desirable frequently that theinner wall of the can mouth shall be thoroughly coated with a waterproofing substance whlle leavthe outer wall uncoated so that an ai diesive may be a plied thereto ahd will stick without interferencefr'om the water-' proo coating. It follows, therefore, that the usual method of coating the lips or mouths of cartons b di ping the same in a wate roofin solution is defective in that both the insi e and the outside of the-mouth are coated and consequently adhesive ap-.

plied to the outside does not 'properl adhere" to the'material of the carton since t e pores have been filled by the waterproofing.

One very important object of the present invention is to provide means whereby the inside of the carton mouth may be thorou hlv and efiiciently coated with waterproo ng material without an of said waterproofing getting on the outsi e of the carton.

It is of course possible to water roof the inside of a carton mouth by app ying the waterproofing with a brush or the like but this naturally is a waste of time and 1s a very expensive procedure on account of the labor costs.

A second important object of the invention is to rovide an improved machine for coating the inside of carton mouths which are operated in an entirely automaticmanner and wherein the handling ofthe cartons w1ll be reduced to a minimum.

With the above and other objects in view,

the invention consists in general of certain novel details of constructlon and combinations of parts hereinafter fully described;-

and specifically claimed.

In the accompanyin drawings, like characters of reference in lcate like parts in the several views, and

Figure 1 is a side elevation tion of a-machine constructed with this invention.

Figure 2 is an enlarged detail section through one of the carton holders and the partly in secln accordance ad'acent parts.

igure 3 is a detailsection partly broken away on the line 3-3 of Figure 1.

F lgure t is a detail view showing a porillustrated there is provided a stand 10 from which extends upwardly a standard 11 having at its upper end an arm 12 extending forwardly over the stand. Depending from the arm 12 is a bearing 13 and a similar bearing 14 is formed on the standard 11 in alinement with the bearing 13. Through the bearings 13 and 14 asses a shaft 15 carrying on its outer en a driving pulley 16 and an idler pulley 17. At the forward end of the arm 12 there is rovided a bearing 18 and 'ournalled on t is hearing is a vertical sha t 19 whereon is fixed a bevel 'tion of a certain supply channel and partir tion used herewith. a

V In the embodiment of the invention herein' gear 20 meshing with a bevel gear 21 fixed on the shaft 15. This shaft 19 has keyed to its lower end a forearmed spider 22 and resting on top .of this spider is a hub 23 which is journalled on the shaft 19 and which is provided at its upper end with a belt pulley 24. On the shaft 15 is also a belt pulley 25 and trained over the pulleys 24 and 25 is a belt 26 which is lead around idlers 27 as shown in Figure 1. At the ends of the arms of the spider 22 are vertical bearingbosses 28 then h which extend shafts 29 carrying on t eir upper ends pinions 30 which mesh with a gear 31 on the sleeve 23. It is to be observed that 31 will revolve in one direction while the spider 22 turns in the op osite direction. By this means the spider is rotated about its axis while at the same time the shafts 29 are rapidly rotated in the opposite direction about their axes. The shaft 29 is hollow and fitted loosely therein is a pipe 32 which extends up throu h a drip pan 33 secured to the bearm 28 y a bracket 34:.

On the upper end of t s shaft 29is mounted a head 35 havin carton gripping fingers municate with this channel.

36 arran ed aroun its periphery so that a carton can be inverted and placed between these fingers. The head 35 is recessed' as at 37 and from this recess waste passages 38 extend through the bottom of the head and communicate with an escape 5 out 39 in the bottom of the drip pan-33, t e passages 38 being brought into registry one after the other with t 's spout as the head rotates. Fixed on the base 10 is a tank 40 and within this tank is mounted a circular plate or runner 41 having one part depressed and channeled to form a trough 42 wherewith communicates a supply pipe 43 havin in turnconnection to a suitable source 0 supply for the coating wh ch is to be applied to the carton. On the lower end of the shaft 19 is a wheel 44having its rim channeled on the under side as at 45 andthe lower ends of the pipes 32 com- The pipes 32 are each closed at its upper end and leading from this upper end to points adjacent the carton wall are distributor pipes 45. It is to be understood that the coating is forced through the pipe 43 under pressure and it is also to be understood that the channel 45 is divided into several segments corresponding to the number of carton holders such division being accomplished by means of partitions 47. In operation the attendant is positioned in front of the machine which is the position in the left of Flgure 1. A suitable supply of uncoated cartons are provided and the machine is started in motion.

This causes the carton supporting head to be brought around in front ofthe operator one after the other. The operator takes a carton in inverted osition and places it in the head. As the liead travels around the coating mixture is forced up through the pipe 32 and distributor nozzles 46 and is ejected from the ends of these nozzles on to the inside mouth of the carton. Since the carton is in rapid revolution with respect to these distributor nozzles a uniform coating will be supplied all around the nozzles and any excess will run down into the recess 37 and thence through the passages 38 and 39 into the tank 40 fromw ence it may be drawn oil by a drain pipe 48 and lead to the source of supply to be pumped back again. As the coated carton comes around to the operating station the operator grips vthe same and quickly removes it with one hand while with the other hand the uncoated carton is placed in the holder.

Of course this operation is repeated as lon as the machine is runnin 'l here has thus been provided a simple and efiicient device of the kind described and for the purpose specified.

It is obvious that minor changes maybe made in the form and construction of the invention without departing from the material principles thereof. It is not therefore desired to confine the invention to the exact form herein shown and described, but it is wished to include all such as properly come within the scope claimed.

Having thus described the invention, what is claimed as new is 1. In acarton coating machine, a carton carrier, an arm supporting said carrier, a shaft to which said arm is fixed, means to drive said shaft and move the carrier around a circular path, means to rotate the carrier during its movement along its path, a source of supply for coating material, a delivery nozzle supported to rotate with the carrier and deliver coating material to a carton on said carrier, a coating material receivin pocket whereto said nozzle is connected, sai pocket being opened at the bottom and rotat ing with the carrier, a circular plate whereon said pocket rests and travels, said plate having a trough forming around a portion wherewith said pocket may register during its movement, said trough having permanent connection with the source of supply, and means to receive excess coating material delivered through said nozzle.

2. In a carton coating machine, a main shaft, a spider carried by said shaft, a sleevc on'said shaft, bearings at the ends of the spider arms, carton carriers provided with shafts mounted in said bearings, ears on said shafts, a gear on said sleeve mes ing with said first mentioned gears, means to drive said shaft and spider and thereby cause rotation of the carriers about their respective axes and means to coat the mouths of the cartons during their revolution.

3. In a carton coating machine, a main shaft, a spider carried by said shaft, a sleeve on said shaft, bearings at the ends of the spider arms, carton carriers provided with shafts mounted in said bearings, gears on said shafts, a gear on said sleeve meshing with said first mentioned gears, means to drive said shaft and spider and thereby cause rotation of the carriers about their respective axes, other means to rotate said sleeve and its gear in a direction opposite to the rotation of said spider and means to coat the mouths of the cartons during their revolution.

4. In a carton coating machine, a main shaft, a spider carried by said shaft, a sleeve on said shaft, bearings at the ends of the spider arms, carton carriers provided with shafts mounted in said bearings, gears on said shafts, a gear on said sleevemeshing with said first mentioned gears, means to drive said shaft and spider and thereby cause rotation of the carriers about their respective axes, other means to rotate said sleeve and its gear in a direction 0 posite to the rotation of said spider, a circular plate surrounding said shaft and having one portion formed as an open to ped trough, a disk carried by said shaft an having portions of its rim formed as open bottomed 5 pockets, said disk resting on said plate whereby said pocket intermittently reflsters with said trough, a source of supp y for coating material connected to the trough, a

pipe leading from each of the pockets upward throu h the carton carrier shaft, and a 10 nozzle leading from the upper end of each p1 n testimony whereof I afiix my si ature.

FREDERICK GOA ES. 

